Gas-pressure regulator



July 24, 1923- v 1,462,958

' R GILMOUR ET AL GAS PRESSURE REGULATOR Filed 'March 50 1922 F'IG.- 1

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ROBERT GILMOUR AND ERNEST COOK, PAVJTUGKET, RHODE ISLAND.

GAS-PRESSURE REGULATOR.

Application filed March 30, 1922. .Serial No. 548,252.

To all whom it may concern:

Be it known that we, Bonner GILMoUR and ERNnsT E. COOK, citizens of theUnited States of America, residing at Pawtuckct, in the county ofProvidence and State of Rhode island, have invented certain new anduseful Improvements in Gas-Pressure Regulators, of which the followingis a specification.

This invention relates to certain new and useful improvements in gasregulators, particularly intended to equalize the pressure of gas inhouse mains and pipes.

Objects of the invention are to generally simplify and improve devicesof the above kind and to provide a device of such type capable of beingcheaply and easily manufactured from standard pipe fittings or the mainportions of its construction, thereby providing a way for quantityproduction so as to meet with the requirements for a successfulcommercial use and to present a device which will have the appearance ofthe ordinary pipe line slightly enlarged, when in use.

- Another object of the invention is to minimize the number of movableparts to such an extent that very little chance of the device'of gettingout of order is had, and wherein the movable parts are of such anature'as to not become worn or inoperative during continued use.

With the above and general objects and others that will appear as thenature of the invention is better understood, the same consists in thenovel construction, combination and' arrangement of parts hereinaftermore fully described, illustrated in the accompanying drawings, andpointed out in the appended claims.

In the drawings:

Figure 1 is a view partly in substantially central longitudinal sectionand partly in side elevation of a gas regulator constructedin'ac'cordance with the present invention and shown operativelyconnected to supply an outlet pipe, fragments of which are shownrespectively in side elevation and in longitudinal sections. 1

Figure 2 is a horizontal sectional view taken on line 22 of Figure 1 andFigure 3 is a side elevational view of the inverted gas controlling cupwith its attached handle or stem.

Referring more in detail to the several views, the present inventionembodies a casing constructed of a main body portion formed of a lengthof relatively large pipes as indicated at 5 which is externally threadedat its ends, and a pair of bushings 6 of the same diameter, one at eachend of the body member 5 and having their end edges in conti uousabutting relation as shown, the bushings 6 being similarly externallythreaded. Coupling sleeves 7 of the internally threaded type arethreaded onto the adjacent portions of the bushings 6 and the bodymember 5 so that each coupling sleeve connects one bushing detachably tothe body member 5 with a substantially gas tight joint. Obviously, thisjoint may be additionally rendered gas tight by the use of any suitableform of packing between the abutting ends of the body member 5 and thebushings 6 or'by providing a leaded joint as is usually practicedin-the' plumbing art with respect to screw threaded connections. [Bythus=coupling the bushings, 6 to the ends of the pipe section 5 a hollowelongated casing is thus formed from commercial fi'tting'capable ofbeing assembled cheaply and easily as well as eX- peditiously andpresenting in appearance substantially nothing more than coupled pipefittings. i

The opening in the end of the upper bushing '6 is internally threadedfor the reception of an end of an outlet pipe 8 which is connected tovarious, burners or the like where the gas is consumed, and the lowerbushing 6 is similarly provided with an in ternally threaded opening inwhich is screwed an inlet pipe 9 of such length as to project aconsiderable distance upwardly into the casing, the diameter of the,pipe 9 being somewhat smaller than the diameter of the pipe section 5of the casing so as to leave an annular space between these members asshown in which is poured an anti-freezing compound or liquid lOwhich mayconsist of equal parts of' water and glycerine.

The lower end of the inlet pipe 9 has one branch of a tee fitting 11threaded thereon Y and the opposed branch of the same has a removableplug 12 while the intermediate part of the tee fitting 11 communicateswith a gas I supply pipe 18. The sediment may be removed from the pipe 9and fitting 11 from time to time by removal of the plug 12.

Loosely disposed within the casing is -an inverted cup shaped gascontrolling hell or member 1 1 whose upper wall is adaptedto normallyrest upon the upper end of the inlet pipe 9, the barrel including acylindrical wall'of slightly greater diameter than that of the pipe 9and of slightlylesser diameter than that of the pipe section?) of thecasing. Thus, an annular space is provided between the cylindrical wallof the inverted cup member 14: and each of the pipes 9 and 5 and thecylindrical wall of the member 14 sur rounds the upper end of the pipe 9as shown. Thelower portion of the cylindrical wall of the inverted cupshaped gas controlling member 14 is provided with a plurality ofhorizontal series ofperi'orations or openings 15, one circular seriesbeing provided in a horizontal plan above another as clearly illustratedin Figures 1 and 3 and the liquid being placedin the casing to such adepth as to fill said casingto a point slightly above the h ghest row ofopenings: 15 when the cup let pipe 9.

' section 5 in case renewal or repair of this member 1 1 is ever foundnecessary.

As the demand for gas, by the lighting and opening of new burners in ahouse, increases, it will lessen the pressure on the top or above thegas controlling cup member 1&1- by the withdrawal from the casing of aquantity of the gas which fills said casing,

As a result, the member let will rise slightly, thus exposing one ormore of the rows or orifices or openings 15 of the cup, and thuspermitting the escape of more gas from the inlet pipe'9. When theburners are shut off, the reverse takes place. It will be seen that thecupis So arranged and is of such a construction that it will besupported or will float partly on the liquid contained in the cylinderand partly on account 01": the pressure of the gas beneath it, thegeneral principle being the flow into the cylinder or casing from themain will be increased and this cup rises and decreases as the cup fallsor lowers. I

While the form of the invention herein shown and described is what isbelieved to be fthe'preferred embodiment thereof, it is nevcomprising anelongated hollow casing having an axial relativelysmaller outlet pipe atone end and a similar inlet pipe at the other end, said inlet pipeprojecting into the easing axially of the latter for a distance, aninverted cup shaped member loosely fitted 1n the casing with its sidewalls in spaced relation to and surrounding the inwardly proecting oneoff the inlet pipe and including an upper wall member normally adaptedto rest upon the upper end of the inlet pipe the highest row ofperforations in the inverted cup member when the latter is normallypositioned, said casing comprising a pipe section externallythreaded ateach end, bushings of similar diameter eachhaving-an end edge abuttingan end edge of the pipe section and being externally threaded, andinternally threaded coupling sleeves connecting the bushing to the pipesection with the joints between the bushings and the pipe sections airtight, said inlet and outlet-pipes beingthreaded centrally through thebush- 3. A gas regulator of the type described comprising an elongatedhollow casing having an axial relatively smaller outlet pipe atone endand a similar inlet pipe at the other end, saidv inlet pipe projectinginto the casing axially of the latter for a distance, an inverted cupshaped member loosely fitted in the casing with its side walls (inspaced relation to and surrounding themwardly projecting end of theinletpipe and including an upper wall member normally adapted to rest upontheupper end of the inlet pipe within the casing, said sidewalls or theinverted cup shaped member being provided with a series of horizontalrows .01 perforations and the upper wall of the same being imperforateand said casinghaving a body of liquid therein of av depth to extendabove vthe highest row of perforations in the inverted cup member whenthe latter is normally positioned, said casing comprising a pipe sectionexternallythreaded at each end, and bushings of similar diameter eachhaving an end edge abuttingan end edge of the pipe sectionand beingexternally threaded, internally threaded coupling sleeves connecting thebushings to the pipe section with the joints between the bushings andthe pipe sections air tight, said inlet and outlet pipes .being'threaded centrallythrough the bushings, a tee fitting having a branchthreaded on the lower end of the inlet pipe outwardly of'the casing andhaving its .opposedbranch provided with a removable cleaner plug, and asupply pipe connected with the remaining corner of said tee fitting.

8. A gas regulator of the type described comprising an elongated hollowcasing having an axial relatively smaller outlet pipe at one end and asimilar inlet pipe at the other end, said inlet pipe projecting into thecasing axially of the latter for a distance, an inverted cup shapedmember loosely fitting in the casing with its side walls in spacedrelation to and surrounding the inwardly projecting end of the inletpipe and including an upper wall member normally adapted to rest uponthe upper end of the inlet pipe within the casing said side Walls of theinverted cup shaped memher being provided with a series of horizontalrows of perforations and the upper Wall of the same being imperforateand said casing having a body of liquid therein of a depthto extendabove the highest row of perforations in the inverted cup member whenthe latter is normally positioned, said casing comprising a pipe sectionexternally threaded at each end, and bushings of sumlar diametereach'having an end edge abut-j ting an end edge of the pipe section andg being externally threaded, internally threaded coupling sleevesconnecting the bushings to the pipe section with thejoints between thebushings and the pipe section air tight, said inlet and outlet pipesbeing member having an axial upwardly projecting stem adapted to form ahandle therefor. In testimony whereof We afix our signatures. Y

ROBERT GILMOUR." ERNEST E. cooK.

